Problem $3\mathrm{.}5$ A two span continuous beam each $6$ m in span, carries uniform

superimposed dead load of $4k\frac{N}{m}$ and a uniform live load of $5k\frac{N}{m}.$ The reactions due

to loadings are shown in the diagram. Draw the shear force and the bending moment

diagram due to the factored loads under the diagram. What is the maximum positive

moment in the first span and the maximum negative moment at the support interior.

Design the critical section at the points of maximum positive BM and negative BM and

show that reinforcement in the sketch. Use a uniform form section throughout the span

of the beam. Check for all ACI requirements and provide a design summary.